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No. (6,586. Patented Dec. 27, I898.

A. RAKY. LOWERING DEVICE FOR RODS 0F BORING APPARATUS.

(Application filed Apr. 10, 1897.) J 3 Sheets-Sheet l.

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No. 6l6,586. Patented-Dec. 27, I898. A. RAKY.

LOWERING DEVICE FOR RODS 0F BORING APPARATUS.

' (Application filed Apr. 10, 1897.) 3 Sheets-Sheet 2.

Wzfnesses I #6 for: 7 5M 1/014 722% No. 616,586. Patented D60. 27. 898.

A. RAKY. LOWERING DEVICE FOR RODS 0F BORING APPARKTUS.

(Application filed Apr. 10, 1897.) (No Model.) 3 Sheets-Sheet 3.

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HJNITE STATES rrrcn,

arnnrr ANTON RAKY, OF RUIPREOHTSAU, GERMANY;

SPECIFICATION forming part of Letters Patent No. 616,586, dated December27, 189 8.

Application filed April 10,1897. Serial No. 631,610. (No modcL) To allwhom, it may concern.-

Be it known that I, ANTON RAKY, a subject of the King of Prussia, GermanEmperor, and a resident of Rupprechtsau, near Strasburg, in Alsace, inthe German Empire, have invented certain new and useful Improvements inLowering Devices for the Rods of Boring Apparatus, (for which patentshave been obtained in France, additional patent to No. 2 1,671, datedJuly 18, 1896; in Belgium, [additional patent to No. 105,682,] No.122,567, dated July 18, 1896; in Austria, No. 2,982, Vol. 46, dated July24, 1896 5 in Great Britain, No. 17,553, dated August 8, 1896; inHungary, No. 7,037, dated July 30, 1896; in Canada, No. 56,092, datedJune 2, 1897, and in Italy, No. 63, Vol. 88, dated July 30, 1897,) ofwhich the following is an exact specification.

The means for lowering the rods according to the progress of the boringconsisted up to now either of a screw-threaded spindle or of a chainintercalated between the boring-rods and the oscillating beamtransmitting the power of the engine or motor of the plant to said rods.The spindle, as well as the chain, could have but a limited length,(about one meter.) If, therefore, the boring-rods had been lowered forsaid length, then the motor or engine had to be stopped or had to beuncoupled from the apparatus, so as to allow of the insertion of a shortpiece of rod between the boring-rods and said spindle or chain and ofagain raising the latter, according to the length of said piece of rod.

The purpose of my invention is to doaway with the loss of time and moneycaused by the stopping of work, and I attain that object by enabling theapparatus to work uninterruptedly-that is to say, to work at least aslong as is necessary for deepening the borehole for the length of aboring-rod proper, (about five meters.)

In carrying my invention into effect I make use of two clamps or pairsof clamping-cheeks, respectively, that are arranged upon the boring-rodone over the other. The lower of said clamps is carried directly orindirectly by the beam, and the upper clamp is carried directly orindirectly by the lower one. The upper clamp maybe displaced along theboring-rod, and the lower clamp allows of the boring-rod being displacedalong or within it. Each clamp may be coupled with or uncoupled from theboring-rod, and said coupling and uncoupling are alternately orreciprocally effected in such a manner that an intermittent lowering ofthe boring-rod results. Prior to each lowering of the boring-rod theupper clamp is lifted off the lower one by a mechanical means of anyappropriate constructionfor instance, such ones as are described asexamples in the further course of the present specification.Irrespective, however, of the special construction of the lifting meansor of the arrangements of its parts, respectively, the cooperation ofthe two clamps with each other, as well as with the boring-rods, is asfollows: If all parts of the apparatus are in their normal state 'or ifthe apparatus is at work, the lower clamp is firmly connected with therods, so that the latter are carried by the beam that transmits themotion of the motor or engine to said rods and transforms the rotarymotion of the motor into a reciprocating one. Then the rods are to belowered, the upper clamp is lifted off the lower distance between thetwo clamps, and I prefer to let said lowering be effected by the samemeans as used for lifting the upper clamp off the lower one. After therods have been lowered the respective upper rod is again connected withthe lower clamp, and the upper clamp may then be disconnected from saidrod and lifted again off the lower one and remain in its higher placeuntil it is again coupled to the rod for lowering this latter.

In order to make my invention more clear, I refer to the accompanyingdrawings, in which similar letters denote similar parts throughout thedifferent views, and in which- Figure 1 is a side view of an oscillatingbeam of a boring apparatus for deep borings, the means for supportingthe supports proper of the beam and for oscillating the latter beingleft away and one end of the beam being furnished with the loweringdevice forming the subject-matter of the present invention. Fig. 2 is aplan of a plate and a ring forming the supporting parts for saidlowering device. Fig. 3 is a vertical section through said parts. Fig.4is a side view of two superposed clamping-cheeks, each of the latterbeing one of the two superposed clamps spoken of. Fig. 5 is a plan ofthe lower clamp. Fig. 6 is a plan of the upper clamp. Fig. 7 is a viewsimilar to Fig. 4, but showing a modified form of construction. Fig. 8represents the form of construction shown in Fig. 7 when turned forninety degrees, and Fig. 9 is a plan of the upper clamp of the otherform of construction. Fig. 10 is a view similar to a combination view ofFigs. 3 and 4, but showing a slightly-modified form of construction; andFig. 11 is a plan of the clamp shown in Fig. 10.

Referring to Figs. 1, 2, and 3, e is a plate which is arranged upon thefree end of the oscillating beam :0 and is provided with bearings c,holding a ring e The latter supports the two clamps aforementioned.

In the form of construction shown in Figs.

4, 5, and 6 the lower clamp consists of the two cheeks m m, Fig. 6, andthe upper clamp consists of the two cheeks w Fig. 5. The two cheeks ofeither clamp may be moved against and from each other by means ofscrew-threaded spindles 5, that are provided with a right-hand thread aswell as with a left-hand one. Each of said spindles is provided with acrank z, and the two cranks belonging to one clamp are connected by abar 2 so as to allow of the simultaneous operation of both said cranks.One of the latter is furnished with or formed into a handle .2

To lift the upper clamp off the lower one, I make use of eccentric disks1), Figs. 4 and 5, located between the two cheeks of one of the clampsand arranged loosely upon the spindles of the same. Each of said disksis furnished with a handle Z). If the parts I) b are in the positionshown in Fig. 4, the upper clamp is in its highest position. If now saidupper clamp is connected with a rod .5" and if thereafter the connectionof the lower clamp with said rod is broken, the upper clamp (and with itthe rod 3 or the boring-rods, respectively) may be caused to get downupon the lower clamp by turning the eccentric disks b for one hundredand eighty degrees. When this has heen done, the lower clamp is againfixed to the rod 8 and the upper clamp is again lifted by turning theeccentric disks in a reverse way, so that all parts in question receiveagain the position shown Fig. 4.

In the form of construction shown in Figs. 7, 8, and 9 lifting the upperclamp is eifected by means of spiral springs h, that are arranged uponpins t. The pins tare held and are kept in proper position by the cheeksof the upper clamp, but they sit loosely in said cheeks and aresupported by the cheeks of the lower clamp. The checks of the upperclamp may therefore be moved along said pins 25, and they can be movedeither down upon the cheeks of the lower clamp or up against the collar25 of the said pins. There are two pins held by each cheek of the upperclamp, and two pins of each cheek are connected by a traverse 76, thatmay be displaced along the pin. Said traverses are supported by thesprings h, and each of the same holds a bolt Z, which holds in its turna check of the upper clamp. It is therefore to be seen that the upperclamp, when in its upper position, is supported or held by the springsh, so that these latter will be compressed or put under tension as soonas the upper clamp is caused to get down upon the lower one. This occurswhen the rod 3 is connected with the upper clamp and disconnected fromthe lower one, as will be clear without a further explanation.Thereafter the lower clamp is again fixed to the rod 8, and the upperclamp is uncoupled from the same. The upper clamp is then automaticallylifted by the springs 77., when all the parts are again in the positionshown in Fig. 7.

In the modified form of construction shown in Figs. 10 and 11 the centerportion of the cheek m of the lower clamp forms a separate piece 712that may be removed from or in= serted into said cheek or may beexchanged for another similar piece of a greater or smaller size or witha greater or smaller open= ing, respectively. Of course each of the fourchecks of the device is furnished with such a removable or exchangeablepiece, and by making use of the same I am enabled to em ploy one and thesame pair of cheeks or one and the same clamp or lowering device, re=spectively, for rods of difierent diameter.

I prefer to let the central opening or bore of the ring e correspondwith the largest possible diameter of the central space of the clamps,and I prefer, further, to let said space and said bore be as large as toallow of the passing through of the connecting-sockets s of the rods. Toobtain a constantly correct position of the lower clamp upon the ring 6I prefer to let each check of said clamp have a downwardly-extendingsemicircular projection m of triangular section. These projections takeinto a correspondingly-shaped cavity of the ring 6 as distinctly shownin Fig. 10.

Having thus fully described the nature of this invention, what I desireto secure by Letters Patent of the United States is- In a boringapparatus for deep borings, having the rods held by a lowering deviceconsisting of two clamps arranged one above the other upon one of theboring-rods and being adapted to be fixed to, loosened from, anddisplaced along the-same, the combination with said clamps of eccentricdisks located specification in the presence of two subscrib between thecheeks of one of the clamps and ing witnesses. arranged loosely onspindles fastened to said T T clamps, and with handles for turning saidABTOL RAKY' 5 eccentric disks, the latter being supported Witnesses:

by the lower clamp,- as set forth. GUSTAV TAUBE,

In testimony whereof I have signed this TILLIAM ESSENXVEIN;

